similar to: Packet Loss

I tried feeding in the 3 encoded frame in ONE BLOCK, and calling speex_decode() 3 times in a roll. Only the 1st frames came out perfectly. For the other 2, I got "corrupt" frame warning. I was supposed to get 38 bytes consumed each frame (narrow-band, VBR off). I tried speex_bits_remaining() to peek on the # of bits consumed, and got variable (clearly wrong)#s returned. But if I

Hello all, I know that SPEEX has a mechanism to handle packet loss. I see there is some handling for packet loss implemented in speexdec. I want to know, if in my own application should i also implement such packet loss handling or is it taken care of within the decoder? I want to test my SPEEX application for GNU Radio for some packet loss,if i just simulate a packet loss mechanism, will it work

Ok, I figured it out. :) This seems to work: 1) Call speex_bits_read_from() once, specifying the location in memory of the compressed data, and the total length of that data. 2) Keep calling speex_decode() until speex_bits_remaining() returns 0. Then you don't have to keep track of the # of frames per packet, or the size of each compressed frame. It's done magically by the codec.

Here's the situation: 3 frames are being transferred back to back over RTP. The total payload is known (thus the TOTAL frame size). We'd like to decode all 3. According to IETF RTP Profile (appendix C, of Jean-Marc's Speex Codec Manual, verison 1.0), "it's only necessary to consider the sequence of bits as output by the Speex encoder, and present the same sequence to

Hi all, Please a moment to look my source code, this is very similar to example of the documentation. I added FIXED_POINT flag. My source code compile and build but not decode correctly (the error may be in the while). I work with eVC 4.0 and pocket pc 2003. Someone know what is the error? Thanks. Rodrigo. #include "speex.h" #define FRAME_SIZE 160 void CPlayerDlg::OnButton3() {

Hi, Speex is progressing and I've started thinking about the next 1.2 release (don't hold your breath). Though the bit-stream won't change, the API likely will. The API for 1.1.x already differs from 1.0.x because the speex_encode and speex_decode now use shorts instead of floats. Now, since I'm changing the API anyway, I thought I might as well fix things that might be annoying

Here is my situation: I have large Speex encoded stream which I would like to playback on wave out device. I could decode whole stream to pcm and play it back as pcm audio, but this is not what I want. Instead I want to decode minimum decodable bits (bytes?) to pcm and play it ... then decode another minimum data chunk and play it, etc. This way I can achieve closest to real-time playback or

Hi i'm developing a sort of VoIP application for my ipaq using speex... I'm still at beginning and i have many problems encoding and decoding my wav files....output is only noise! Why? I'm using Libspeex 1.1.3, Embedded VisualC++ 3.0, Ipaq 3850(206 MHz Intel® Strong ARM 32-bit RISC Processor) PocketPC 2002 (Windows CE 3.0). Libspeex is complied with the definition of

David, Here's the trick ... do this just before your speex_bits_write(): speex_bits_insert_terminator(&bits); Then, when decoding, keep calling speex_decode() until it returns -1 or speex_bits_remaining(&bits) returns 0. Works for me, anyway. Tom David Barrett (dbarrett@quinthar.com) wrote: > > Hi, I'm using Speex and I want to pack multiple frames into a single >

Hi, Sorry! Marc Gimpel. I wrote it in a false thread before. It was my first time. :-) I have to write a small programm which should be able to record speeches and in addition synchronize the recorded speeches with measuring data. My idea is to record the speech in the normal way with speex and without ogg. If a sync message was received, i write a custom in-band messages using mode 13

Ok, I'm using 1.1.4, so I should pass signed short(wav data) directly to speex_encode()? But the samplecode that comes with 1.1.4 shows me to put short in float array, and pass the float array to speex_encode() <p>-----Original Message----- From: owner-speex-dev@xiph.org [mailto:owner-speex-dev@xiph.org] On Behalf Of Jean-Marc Valin Sent: Saturday, April 17, 2004 6:25 AM To: speex

I'm confused about the format of the PCM/WAV data for speex_encode & speex_decode speex_encode(enc_state, input_frame, &bits); In the manual, it says "input_frame is a (float *) pointing to the beginning of a speech frame" (for encode) But I've found that in speexenc.c and testenc.c, short* is used instead of float* So, isn't it signed 16 bit samples(if

Hi, My problem is at the second fread function, fread(&nbBytes, sizeof(int), 1, fin); //the first fread fread(cbits,1, nbBytes, fin);// the second fread. When I'm debugging always nbytes is greater than cbits. This give me a execution error. Thanks. Rodrigo. <p><p><p>-----Mensaje original----- De: owner-speex-dev@xiph.org [mailto:owner-speex-dev@xiph.org] En nombre

Hi, Does anyone know a practical way to determine the number of 20ms speex frames in a given speex packet without actually looping on speex_decode* ? Cheers, Dave -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/speex-dev/attachments/20080208/0a3e84ac/attachment.html

openh323 speexcodec.cxx has: BOOL SpeexCodec::EncodeFrame(BYTE * buffer, unsigned & length) { // convert PCM to float float floatData[SAMPLES_PER_FRAME]; PINDEX i; for (i = 0; i < SAMPLES_PER_FRAME; i++) floatData[i] = sampleBuffer[i]; // encode PCM data in sampleBuffer to buffer speex_bits_reset(bits); speex_encode(coder_state, floatData, bits);

On Mon, Apr 19, 2004 at 02:46:44AM -0400, Jean-Marc Valin wrote: > OK, I'll try to do *something* about it. It'll be either "support the > 1.0 ABI" or "make sure the link will break". While the former would be > nice, I'm not sure I want to really want to force 1.2 to have the same > ABI as 1.0.x. More on this when I have some time to think about it.

Hello, When I decode a recoded sound encoded by speex, it has too much noise. The noise is "slightly" reduced if I set the quality to 10. How do I get rid of this noise? The code is as follows. For encoding . state = speex_encoder_init ( &speex_nb_mode ); tmp = 7; speex_encoder_ctl ( state, SPEEX_SET_MODE, &tmp); // set quality tmp = 10; speex_encoder_ctl ( state,

Hello there, I thought I would contribute to this wonderful project but noting a simple but problematic bug in speex_bits_read_whole_bytes(). SITUATION: I have a large stream of frames with NO breaks or length indicators inbetween each frame. For this reason, I call speex_bits_read_whole_bytes() and fill it to MAXIMUM in a loop while calling speex_decode() until there are no more bytes to read.

Somewhere in the new packet-loss concealment code, there is a bug. I tried encoding a 44100-hz stereo file and it decodes just fine, but if I try it with packet loss, I get a segmentation fault. If you want to see the file, I can put it up somewhere publicly accessible. If someone here can't work on it, I'll be back on my home computer in a few days, so I'll work on it then.

Hello there I'm having trouble decoding speex frames when using 32KHz audio and quality setting 4. If I encode three frames and then decode the three frames then the speex_bits_remaining() still reports that there are bits remaining. All other band modes and qualities reports that the buffer is emptied. Here's an example that shows 4 bits remaing in the buffer after the frames have